Syria’s main opposition group said nearly 800 people have been killed in violence across the country in the past week which saw some of the bloodiest violence in the 16-month uprising against President Bashar Assad.

Opposition activists groups say more than 14,000 people have been killed in the 15-month-old uprising against President Bashar Assad’s authoritarian rule, or on average of about 900 a month. That would make last week’s toll alone, tallied by the Syrian National Council (SNC), almost as high as the monthly average.